Could It Have Cycled? ??

[Cujo#31]

Let it sit. You will often have major cycle and a week or two down the road a "mini cycle" has been known to happen. I would say if tank has cycled once and stablized u could add a "cheap" fish or two (you wouldnt mind keeping in case you cant catch em to remove them) and they ca help u finish the cycle to stable system.